Answer to Question #168252 in Biology for John

Question #168252

Describe the structure and function of the human transport system in terms of the following points.

Write a brief introduction. What makes up the cardiovascular system (CVS) i.e. the heart, blood vessels and blood. Finally, summarise its functions.

• Pipes and plumbing (blood vessels)

• Circulating materials (composition of blood and functions of


• Pump and its control (heart and its controls [nerves])

Expert's answer

The components of the transport system in human beings are the heart, blood, and blood vessels.The main function of the transport system is to allow for the move nutrients, oxygen, carbon dioxide, hormones, antibodies, urea and heat within the blood plasma throughout the body.

The vascular system, also called the circulatory system, is made up of the vessels that carry blood and lymph through the body. The arteries and veins carry blood throughout the body, delivering oxygen and nutrients to the body tissues and taking away tissue waste matter.

Functions of Pipes and plumbing.

Blood vessels are the channels or conduits through which blood is distributed to body tissues. The vessels make up two closed systems of tubes that begin and end at the heart. One system, the pulmonary vessels, transports blood from the right ventricle to the lungs and back to the left atrium.

Functions of Circulating materials

It has four main components: plasma, red blood cells, white blood cells, and platelets. Blood has many different functions, including: transporting oxygen and nutrients to the lungs and tissues. forming blood clots to prevent excess blood loss.

Functions of pump and it's control

Heart rate is controlled by the two branches of the autonomic (involuntary) nervous system. The sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS). The sympathetic nervous system (SNS) releases the hormones (catecholamines - epinephrine and norepinephrine) to accelerate the heart rate.

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